Alonso is most likely a reference to the character Don Quixote from the novel of the same name by Miguel de Cervantes. Quixote (real name Alonso Quixano) fancies himself a knight fashioned after those of medieval Europe and embarks on various misadventures, often leading to misfortune due to his delusional mindset (a famous example is his attacking a windmill which he perceived as a harmful giant, and being injured when he is struck by the blades.)